Width function on arrays

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mlam
mlam 2015-9-7
编辑： Stephen23 2020-10-15
How do i use the width or height functions on a 3d array? For example, the array information i am using is that of a picture.

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Stephen23
Stephen23 2015-9-7
编辑：Stephen23 2020-10-15
MATLAB does not have width or height functions for normal arrays. You can use size to get the size of an array:
d = size(X)
[m,n,p,~] = size(X)
m = size(X,dim)
You can select the dimension using the optional second argument:
rows = size(X,1)
cols = size(X,2)
pages = size(X,3)
You might like to read about multidimensional arrays to know how these are defined and accessed.
For the new data class tables you can use the width function to get how many variables there are in the table, and height to get the number of rows of the table.
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f
f 2020-10-15
Just for future reference: as of R2020b, I think width and height have been added for arrays: https://it.mathworks.com/help/matlab/ref/width.html?s_tid=srchtitle

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